Roll 50: Copied IDLs, PYTHON scripts from WebKit removed deleted files in WebCore

core/streams/ReadableStream.idl

Index: core/streams/ReadableStream.idl
diff --git a/core/streams/ReadableStream.idl b/core/streams/ReadableStream.idl
deleted file mode 100644
index 33fbddc153a7d6508c76482eae7ab735bd8bdf9c..0000000000000000000000000000000000000000
--- a/core/streams/ReadableStream.idl
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-[
-    GarbageCollected,
-    Exposed=(Window,Worker),
-] interface ReadableStream {
-    [CallWith=ExecutionContext, RaisesException] ReadableStreamReader getReader();
-    [CallWith=ScriptState] Promise<void> cancel(optional any reason);
-};